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Ina aka rarraba flake graphite na halitta?
A cewar rahoton THE United States Geological Survey (2014), an tabbatar da cewa akwai tan miliyan 130 na flake graphite a duniya, daga cikinsu akwai tan miliyan 58 na Brazil, kuma na China shine tan miliyan 55, wanda shine na farko a duniya. A yau za mu gaya muku...Kara karantawa